参数资料
型号: IPR-FFT
厂商: Altera
文件页数: 10/70页
文件大小: 0K
描述: IP FFT/IFFT RENEW
标准包装: 1
系列: *
类型: MegaCore
功能: 快速傅里叶变换处理器
许可证: 续用许可证
1–6
Chapter 1: About This MegaCore Function
Performance and Resource Utilization
Table 1–7 lists performance with buffered burst data flow architecture, using the 4
multipliers/2 adders complex multiplier structure, for data and twiddle width 16, for
Cyclone III (EP3C25F324C6) devices.
Table 1–6. Performance with the Buffered Burst Data Flow Architecture—Cyclone III Devices
Transform Calculation
Data Load & Transform
Block Throughput
Points
Number of
Engines (1)
f MAX
(MHz)
Time (2)
Cycles Time ( ? s)
Calculation
Cycles Time ( ? s)
Cycles
Time ( ? s)
256
1024
1
1
247
241
235
1069
0.95
4.44
491
2093
1.99
8.69
331
1291
1.34
5.36
4096
1
227
5167
22.81
9263
40.9
6157
27.18
256
1024
2
2
225
207
162
557
0.72
2.69
397
1581
1.77
7.63
299
1163
1.33
5.61
4096
256
1024
4096
2
4
4
4
215
230
230
215
2,07
118
340
1378
12.12
0.51
1.48
6.4
6703
347
1364
5474
31.17
1.51
5.93
25.4
5133
283
1099
4633
23.87
1.23
4.78
21.5
Notes to Table 1–7 :
(1) When using the buffered burst architecture, you can specify the number of quad-output engines in the FFT parameter editor. You may choose
from one, two, or four quad-output engines in parallel.
(2) In a buffered burst data flow architecture, transform time is defined as the time from when the N-sample input block is loaded until the first
output sample is ready for output. Transform time does not include the additional N-1 clock cycle to unload the full output data block.
(3) Block throughput is the minimum number of cycles between two successive start-of-packet (sink_sop) pulses.
(4) EP3C10F256C6 device.
(5) EP3C16F484C6 device.
Table 1–8 lists resource usage with burst data flow architecture, using the
4 multipliers/2 adders complex multiplier structure, for data and twiddle width 16,
for Cyclone III (EP3C10F256C6) devices.
Table 1–7. Resource Usage with the Burst Data Flow Architecture—Cyclone III Devices
(Part 1 of 2)
Points
256
1024
4096
256
1024
4096
256
1024
4096
256
1024
4096
Engine
Architecture
Quad Output
Quad Output
Quad Output
Quad Output
Quad Output
Quad Output
Quad Output
Quad Output
Quad Output
Single Output
Single Output
Single Output
Number of
Engines (2)
1
1
1
2
2
2
4
4
4
1
1
1
Combinational
LUTs
3120
3227
3277
5141
5248
5304
9012
9144
9241
1449
1518
1598
Logic
Registers
3694
3876
4044
5872
6064
6240
10659
10868
11058
1499
1545
1591
Memory
(Bits)
14592
57600
229632
14592
57600
229632
14592
57600
229632
9472
37120
147712
Memory
(M9K)
8
8
28
15
15
28
28
28
28
3
6
19
9×9
Blocks
24
24
24
48
48
48
96
96
96
8
8
8
f MAX
(MHz)
232
246
215
244
216
219
225
202
204
250
223
227
FFT MegaCore Function
User Guide
November 2013 Altera Corporation
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